From 1c3eb8f8ff392c3a405213201355dce96e618d8d Mon Sep 17 00:00:00 2001
From: qjb <qjb@rock-chips.com>
Date: Thu, 24 Apr 2014 15:45:15 +0800
Subject: [PATCH] rt5631 : optimize boot speed

---
 sound/soc/codecs/rt5631.c | 48 +++++++++++++++++++++++++++------------
 1 file changed, 33 insertions(+), 15 deletions(-)

diff --git a/sound/soc/codecs/rt5631.c b/sound/soc/codecs/rt5631.c
index 478f5cca8e46..8bf781711908 100755
--- a/sound/soc/codecs/rt5631.c
+++ b/sound/soc/codecs/rt5631.c
@@ -56,6 +56,9 @@ struct rt5631_priv {
 	int eq_mode;
 	int phone_det_level;
 	int pll_used_flag;
+	
+	struct workqueue_struct *irq_wq;
+	struct delayed_work rt5631_delayed_work;
 };
 #if (RT5631_SPK_TIMER == 1)
 static struct timer_list spk_timer;
@@ -1988,23 +1991,14 @@ static int rt5631_set_bias_level(struct snd_soc_codec *codec,
 	return 0;
 }
 
-static int rt5631_probe(struct snd_soc_codec *codec)
+static void rt5631_init_work(struct work_struct *work)
 {
+	struct snd_soc_codec *codec = rt5631_codec;
 	struct rt5631_priv *rt5631 = snd_soc_codec_get_drvdata(codec);
-	int val;
-	int ret;
-	ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C);
-	if (ret != 0) {
-		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
-		return ret;
-	}
-	codec->cache_bypass = 1;
-
+	int val,ret;
+	DBG("Enter::%s----%d\n",__FUNCTION__,__LINE__);	
+	
 	val = rt5631_read_index(codec, RT5631_ADDA_MIXER_INTL_REG3);
-	if(val < 0)
-	{
-		return -ENODEV;
-	}
 	if (val & 0x0002)
 		rt5631->codec_version = 1;
 	else
@@ -2031,7 +2025,6 @@ static int rt5631_probe(struct snd_soc_codec *codec)
 					0, 0x2000);
 
 	codec->dapm.bias_level = SND_SOC_BIAS_STANDBY;
-	rt5631_codec = codec;
 
 #if (RT5631_SPK_TIMER == 1)
 	/* Timer module installing */
@@ -2042,6 +2035,31 @@ static int rt5631_probe(struct snd_soc_codec *codec)
 
 	INIT_WORK(&spk_work, spk_work_handler);
 #endif
+	
+}
+
+static int rt5631_probe(struct snd_soc_codec *codec)
+{
+	struct rt5631_priv *rt5631 = snd_soc_codec_get_drvdata(codec);
+	int val;
+	int ret;
+	
+	rt5631_codec = codec;
+	ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C);
+	if (ret != 0) {
+		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
+		return ret;
+	}
+	codec->cache_bypass = 1;
+
+	rt5631->irq_wq = create_singlethread_workqueue("rt5631-irq_wq");
+	if (!rt5631->irq_wq) {
+		printk( "Failed to rt5631 allocate IRQ worker\n");
+		return -ESRCH;
+	}	
+	INIT_DELAYED_WORK(&rt5631->rt5631_delayed_work, rt5631_init_work);
+	queue_delayed_work(rt5631->irq_wq, &rt5631->rt5631_delayed_work, msecs_to_jiffies(10));
+
 //bard 7-16 s
 	INIT_DELAYED_WORK(&rt5631_delay_cap,rt5631_adc_on);
 //bard 7-16 e
-- 
2.34.1